apollo
Online Doctor Consultation & Medicines
  • Login
HomeHealth QueryGeneral Physician/ Internal MedicineI'm wondering if fasting is necessary for a Vitami...
  • female
  • 45 Years
  • 22/01/2025

Question

I'm wondering if fasting is necessary for a Vitamin B12 blood test. I had mine done about 3 hours after lunch, and now I'm second-guessing whether that might have affected the results. Should I think about getting it retested?

Doctor 1

Answered by 1 Apollo Doctors

Dr. Dr Ranjith Darla

Dr Ranjith Darla

General Practitioner

  • MBBS
  • 3+ Yrs
Consult Now

A Vitamin B12 blood test does not typically require fasting. It is usually safe to have the test done at any time of the day, regardless of when you last ate. Since you had the test done 3+ hours after lunch, there is no need for a retest. The results should still provide valuable information about your Vitamin B12 levels.

Answered 21 days ago

0

0

More General Physician/ Internal Medicine Health Queries

View all

Question

I've been feeling like I might have a fever for a couple of days, but when I check my temperature, it's normal. Should I be concerned about this? What do you think is going on? Could there be another reason why Im feeling this way, and is there anything I should do?

Question

I'm a bit unsure about how to use these ear drops for wax that I got from the chemist. Theyre called Drep Wax drops, but there's no information on the bottle about how many drops I should be using. Could you let me know how to go about using them?

Question

I'm really concerned about my uncle who's 60 years old. He's been occasionally running a fever for the past month and has lost weight. He was 78 kg, but now has reduced a bit over the last few months. The chest CT scan results and AFB test both came back negative. Can you help me understand what might be causing these symptoms?

Health Articles for you

View all
How To Reduce HbA1c Level?

Hba1c

How To Reduce HbA1c Level?

Discover effective ways to lower your HbA1c levels naturally through diet, exercise, and lifestyle changes. Learn how to manage blood sugar and improve long-term diabetes control.

How To Reduce a Hangover?

Hangovers

How To Reduce a Hangover?

Discover quick and natural remedies to reduce hangover symptoms like headache, nausea, and fatigue. Bounce back fast with hydration tips, foods, and recovery hacks.

How To Reduce Hemoglobin Naturally?

Anemia Treatment

How To Reduce Hemoglobin Naturally?

Learn how to reduce high hemoglobin levels naturally. Discover lifestyle changes like hydration, quitting smoking, dietary adjustments, and exercise to manage elevated hemoglobin effectively and prevent complications.

Treating Frostbite Effectively

General Medical Consultation

Treating Frostbite Effectively

Discover effective ways to treat frostbite and prevent long-term damage. Learn first aid steps, home remedies, and medical treatments to restore skin health and circulation.

Understanding Repetitive Hiccups: Causes and Management

Hiccups

Understanding Repetitive Hiccups: Causes and Management

Struggling with persistent hiccups? Understand the reasons behind repetitive hiccups and learn how to find relief. Explore causes and remedies.

Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.